$OpenBSD: patch-configure_ac,v 1.1.1.1 2014/10/03 11:31:27 jasper Exp $

Silence warnings about base headers, drowning real warnings.

--- configure.ac.orig	Sat Jul 26 02:35:40 2014
+++ configure.ac	Sat Jul 26 02:35:52 2014
@@ -304,7 +304,7 @@ dnl   adds "-Wall -W" to CFLAGS if the compiler is gcc
 dnl --enable-developer sets liburcu debug stuff and doesn't set -DNDEBUG,
 dnl   and also sets "-g" for debug if the compiler supports it,
 dnl   and sets a ton of gcc 4.x extra warnings flags.
-GCC_WARNFLAGS="-Wall -W -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wshadow -Wredundant-decls -Wwrite-strings -Wformat=2"
+GCC_WARNFLAGS="-Wall -W -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wshadow -Wwrite-strings -Wformat=2"
 GCC_DEV_WARNFLAGS="${GCC_WARNFLAGS} -Wpointer-arith -Wfloat-equal -Wcast-align"
 if test "x$developer" != xno; then
   if test "x$ac_cv_c_compiler_gnu" = xyes; then
